CN104954339B - A kind of power emergency repair remote communication method and system - Google Patents
A kind of power emergency repair remote communication method and system Download PDFInfo
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- CN104954339B CN104954339B CN201410125814.8A CN201410125814A CN104954339B CN 104954339 B CN104954339 B CN 104954339B CN 201410125814 A CN201410125814 A CN 201410125814A CN 104954339 B CN104954339 B CN 104954339B
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Abstract
The invention discloses a kind of power emergency repair remote communication method and system, wherein, this method includes：Live local communication system will be sent to secure accessing platform in the field data of emergency first-aid repair collection in worksite by transformer station；Secure accessing platform carries out safe handling to field data, and safe handling includes：Data deciphering, authentication and data filtering；Field data after safe handling is sent to emergency first-aid repair control centre, instruction emergency first-aid repair control centre and performs corresponding operation by secure accessing platform.This method is by security management and controls such as data encryption of the secure accessing platform realization to wireless private network, authentication, data filterings, so as to increase the security of power sensitive information.
Description
Technical field
The present invention relates to power emergency repair communication technical field in the communications field, in particular it relates to a kind of power emergency
Rush to repair remote communication method and system.
Background technology
Power emergency repair business has the characteristics of mobility is strong, real-time is high, it is necessary to establish communication system in a short time
System, the communication mode generally used at present is wireless public network (GPRS, 3G etc.) and satellite, but the bandwidth that wireless public network provides is difficult
To meet the business demands such as emergency first-aid repair HD video, real-time GIS；Satellite communication cost is higher, signal covering by surface structures,
Weather influences more serious.Some areas have been attempted using wireless private network carrying power emergency repair business, are nothings by the way of
Line private network is directly accessed power system Intranet, wireless private network refer to industry or enterprise for meet itself organization of production, command scheduling and
The special applications such as information management demand and the private radio communication network built, including LTE, WiMAX, McWILL, WiFi,
The multiple technologies standard such as ZigBee.But wireless private network, which is directly accessed power system Intranet, to be lacked effective protecting information safety and arranges
Apply, it is difficult to meet the information security management regulation of correlation, therefore be confined to pilot scope, fail popularization and application.
In process of the present invention is realized, inventor has found that at least there are the following problems in the prior art：
（1）The bandwidth that wireless public network provides is difficult to meet emergency first-aid repair HD video, real-time GIS（Geographic
Information System, GIS-Geographic Information System）Etc. business demand.
（2）Satellite communication cost is higher, and signal covering is influenceed more serious by surface structures, weather, it is difficult to real-time, round-the-clock
It is open-minded.
（3）Wireless private network lacks corresponding protecting information safety measure, it is difficult to meets the information security management regulation of correlation.
The content of the invention
Information Security is not high when the present invention is to overcome power emergency repair communication system communication in the prior art
Defect, according to an aspect of the present invention, propose a kind of power emergency repair remote communication method.
A kind of power emergency repair remote communication method according to embodiments of the present invention, including：Live local communication system
It will be sent in the field data of emergency first-aid repair collection in worksite by transformer station to secure accessing platform；Secure accessing platform is to scene
Data carry out safe handling, and safe handling includes：Data deciphering, authentication and data filtering；Secure accessing platform will safety
Field data after processing sends to emergency first-aid repair control centre, instruction emergency first-aid repair control centre and performs corresponding operation.
In the above-mentioned technical solutions, the connection of SSL vpn tunnelings is established between transformer station and secure accessing platform, transformer station makees
For SSL VPN clients, secure accessing platform is as SSL vpn servers end；Live local communication system is adjusted with emergency first-aid repair
Established between degree center L2TP vpn tunnelings connection, command scheduling server be used as L2TP server ends, emergency first-aid repair dispatch in
The heart is as L2TP clients.
In the above-mentioned technical solutions, will be sent in the field data of emergency first-aid repair collection in worksite to secure accessing platform, bag
Include：It is taken at the field data of emergency first-aid repair collection in worksite；Virtual ip address is configured, new TCP is established with secure accessing platform
Connection；Consulting session key, and session key and field data are sent to secure accessing platform.
In the above-mentioned technical solutions, before the step of secure accessing platform carries out safe handling to field data, also wrap
Include：Live local communication system is packaged the processing of L2TP protocol headers to field data, determines level package field data；Become
Power station is packaged the processing of ssl protocol header to level package field data, determines second level package field data, and two level is sealed
Dress field data is sent to secure accessing platform；Secure accessing platform carries out parsing ssl protocol report to second level package field data
Head processing, obtains level package field data；
Sent in the field data after by safe handling the step of emergency first-aid repair control centre, in addition to：It is emergent
Repairing control centre carries out parsing the processing of L2TP protocol headers to the field data after safe handling.
In the above-mentioned technical solutions, field data is sent to secure accessing and put down by transformer station by power optical fiber communication network
Platform.
Information Security is not high when the present invention is to overcome power emergency repair communication system communication in the prior art
Defect, according to an aspect of the present invention, propose a kind of power emergency repair telecommunication system.
A kind of power emergency repair telecommunication system according to embodiments of the present invention, including：Live local communication system,
Transformer station, secure accessing platform and emergency first-aid repair control centre；Live local communication system passes sequentially through transformer station and safety connects
Enter platform with emergency first-aid repair control centre to be connected；Live local communication system includes：Data collection station, command scheduling server
And wireless base station, data collection station and command scheduling server are connected with wireless base station respectively.
In the above-mentioned technical solutions, transformer station includes：Wireless CPE and Security Encryption module, wireless CPE and safety encryption mould
Block is connected；Security Encryption module includes USBKey or TF encrypted cards.
In the above-mentioned technical solutions, secure accessing platform includes：Safe access gateway, authentication module and data filtering
Module, the safe access gateway are connected with the authentication module and the data filtering module respectively；The transformer station
It is connected by the safe access gateway with the emergency first-aid repair control centre.
In the above-mentioned technical solutions, the connection of SSL vpn tunnelings is established between the transformer station and the secure accessing platform,
The transformer station is as SSL VPN clients, and the secure accessing platform is as SSL vpn servers end；The scene is local
The connection of L2TPVPN tunnels, the command scheduling server conduct are established between communication system and the emergency first-aid repair control centre
L2TP server ends, the emergency first-aid repair control centre is as L2TP clients.
In the above-mentioned technical solutions, the transformer station is connected by power optical fiber communication network with the secure accessing platform.
A kind of power emergency repair remote communication method provided in an embodiment of the present invention and system, by wireless private network carrying
Multimedia dispatching data access secure accessing platform, pass through data encryption of the secure accessing platform realization to wireless private network, identity
The security management and controls such as certification, data filtering, solve when transmitting power sensitive information using wireless private network and asking for potential safety hazard be present
Topic.Meanwhile the information access method based on nested vpn tunneling, realized using the method for L2TP VPN nesting SSL vpn tunnelings
Session Initiation Protocol passes through secure accessing platform, ensure that the normal realization of multimedia dispatching business.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and obtained in book, claims and accompanying drawing.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structure chart of power emergency repair telecommunication system in the embodiment of the present invention；
Fig. 2 is the schematic diagram that power emergency repair telecommunication system tunnel is nested in the embodiment of the present invention；
Fig. 3 is message encapsulation parsing schematic diagram in the embodiment of the present invention；
Fig. 4 is the structure chart of power emergency repair telecommunication system in the embodiment of the present invention one；
Fig. 5 is power emergency repair remote communication method flow chart in the embodiment of the present invention；
Fig. 6 is the detail flowchart of power emergency repair remote communication method in the embodiment of the present invention two.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by embodiment.
According to embodiments of the present invention, there is provided a kind of power emergency repair telecommunication system, Fig. 1 are that the power emergency is robbed
The structure chart of telecommunication system is repaiied, is specifically included：Live local communication system 10, transformer station 20, the and of secure accessing platform 30
Emergency first-aid repair control centre 40；Wherein, live local communication system 10 pass sequentially through transformer station 20 and secure accessing platform 30 with
Emergency first-aid repair control centre 40 is connected.
Specifically, live local communication system 10 includes：Data collection station 101, command scheduling server 102 and wireless
Base station 103, data collection station 101 and command scheduling server 102 are connected with wireless base station 103 respectively.
Data collection station 101 is used for the field data for gathering emergency first-aid repair scene, and it is whole to specifically include voice terminal, video
End and data terminal etc..The field data is converged to by command scheduling server 102 by wireless base station 103 simultaneously, commander adjusts
Degree server 102 carries out integration processing to the field data collected, and reuses wireless base station 103, passes through wireless private network
Field data is sent to the nearest transformer station 20 in distance repairing scene in the form of packet.
Transformer station 20 includes：Wireless CPE（Customer Premise Equipment customer terminal equipments）201 and safety
Encrypting module 202, wireless CPE201 are connected with Security Encryption module 202.
Wireless CPE201 receives the field data from live local communication system 10, and passes through Security Encryption module 202
The field data is encrypted, and the field data after encryption is accessed by electric power by wireless CPE201 Ethernet interface
Fiber optic communication network, sent using power optical fiber communication network to secure accessing platform 30.
Security Encryption module 202 is specifically as follows USBKey or TF（Trans-flash, mobile memory card）Encrypted card, its
Function is as follows：
(1), the authentication based on digital certificate.USBKey or TF encrypted cards provide a digital certificate, ensure user
The legitimacy of identity.
(2), virtual ip address, new TCP connections are established.The virtual IP address of USBKey or TF encrypted cards, for
Secure accessing platform 30 establishes new TCP connections, and the message of former TCP connections is encapsulated within new connection as data field.
(3), data encryption.When establishing TCP connections every time will consulting session key, accomplish one-time pad, enhancing message
Confidentiality.
Secure accessing platform 30 is the key foundation for building intelligent grid information security access system, is recognized by two-way certificate
The measure such as card, data confidentiality transmission, safe access control, Network Isolation and secure data filtering, Real-time Monitor Management, undertakes intelligence
Intelligent terminal monitors in real time under the energy various complex network environments of power network, secure accessing, the weight such as Security Data Transmission is with exchanging, early warning
Want function.Specifically, secure accessing platform 30 includes：Safe access gateway 301, authentication module 302 and data filter module
Block 303, safe access gateway 301 are connected with authentication module 302 and data filtering module 303 respectively.
Field data is transferred to the secure accessing platform 30 of distal end through power optical fiber communication network, secure accessing platform 30 with
After the measures such as data deciphering, filtering, authentication are realized in the cooperation of USBKey or TF encrypted cards, field data is transferred to emergent rob
Repair control centre 40.
Emergency first-aid repair control centre 40 configures one of the client of PC as command scheduling server 102, is adjusted with commander
Degree server 102 establishes TCP connections, realizes information interaction.
A kind of power emergency repair telecommunication system provided in an embodiment of the present invention, the multimedia that wireless private network is carried
Data access secure accessing platform is dispatched, passes through data encryption of the secure accessing platform realization to wireless private network, authentication, number
According to security management and controls such as filterings, solve the problems, such as potential safety hazard be present when transmitting power sensitive information using wireless private network.
On the other hand, emergency first-aid repair scheduling system is to realize the integrated dispatch of the multimedia messages such as video, voice, data,
Generally employ Session initiation Protocol（SIP, Session Initiation Protocol）As signaling control protocol, realize
MPTY, intrusion, the scheduling feature such as toll breakdown, but secure accessing platform 30 does not support the access of Session Initiation Protocol directly, therefore
After adding information security access platform in a communication link, emergency first-aid repair control centre 40 can not be directly based upon Session Initiation Protocol with robbing
Communication linkage is established at the scene of repairing.
In the embodiment of the present invention, using based on nested VPN（Virtual Private Network, VPN）
The data cut-in method in tunnel transmits Session Initiation Protocol.Tunneling technique is a kind of encapsulation technology, and it is passed using a kind of procotol
Defeated another procotol, i.e., using a kind of network transmission protocol, data message caused by other agreements is encapsulated in its own
Message in, then transmit in a network, conventional tunnel protocol includes L2TP（Layer Two Tunneling Protocol,
Level 2 Tunnel Protocol）、GRE（Generic Routing Encapsulation, generic route encapsulation）、IPsec（IP
Security, IP security protocol）、SSL VPN（Secure Sockets Layer, SSL；Virtual Private
Network, VPN）Deng.Mode of the secure accessing platform 30 based on similar SSL VPN realizes that external user is visited safely
Intranet information is asked, when external user establishes connection with operation system, actually first tunnel is established with secure accessing platform and is connected, pacify
Full access platform provides information forwarding service between external user and operation system, while carries out encryption and decryption, data filtering etc.
Operation.
It is shown in Figure 2, SSL vpn tunnelings are established in the embodiment of the present invention between transformer station 20 and secure accessing platform 30
Connection, transformer station 20 are used as SSL VPN clients, and secure accessing platform 30 is as SSL vpn servers end；Meanwhile scene is originally
The connection of L2TP vpn tunnelings is established between earth communication system 10 and emergency first-aid repair control centre 40, command scheduling server 102 is made
For L2TP server ends, emergency first-aid repair control centre 40 is used as L2TP clients.
Specifically, installing L2TP server softwares in command scheduling server 102, emergency first-aid repair control centre 40 makees
L2TP client softwares are installed for command scheduling client, L2TP VPN are established between command scheduling server and client
Tunnel connects, and realizes nested with SSL vpn tunnelings, enters again after so the message of Session Initiation Protocol is encapsulated among L2TP agreements
Row information is transmitted, and secure accessing platform 30 is the discovery that L2TP protocol massages after parsing, and further can be forwarded to purpose operation system.
Message encapsulates the schematic diagram with parsing as shown in figure 3, L2TP servers can fictionalize an IP address, gives SIP associations
The upper L2TP protocol massages of TCP message encapsulation of view, further encapsulate ssl protocol message, secure accessing is put down by wireless CPE201
Platform 30 can only parse L2TP protocol massages, forward the message to L2TP clients, L2TP clients are by after L2TP packet parsings
Session Initiation Protocol message is restored, realization once communicates.Command scheduling client accesses the data flow of command scheduling server 102
It is contrary to the above.
The message encapsulation of nested vpn tunneling comprises the following steps that with parsing：
Step A1, live local communication system 10 uses Session Initiation Protocol as signaling control protocol, by command scheduling server
102 are scheduled commander.
Step A2,102 virtual IP address of command scheduling server, the upper L2TP associations of TCP message encapsulation to Session Initiation Protocol
Message is discussed, the virtual ip address is used in message.
Step A3, the same virtual IP address of Security Encryption module 202, further encapsulates ssl protocol message, in message
Use the virtual ip address.
Step A4, secure accessing platform 30 parses ssl protocol, and the data field restored is L2TP protocol massages, without
It is Session Initiation Protocol message, therefore the message will not be filtered.
Step A5, L2TP messages are forwarded to emergency first-aid repair control centre 40, and emergency first-aid repair control centre 40 reports L2TP
Session Initiation Protocol message is restored after text parsing, realization once communicates.
The communication process of power emergency repair telecommunication system is discussed in detail below by one embodiment.
Embodiment one
In embodiment one, the field data of the collection such as emergency first-aid repair video terminal, voice terminal, data terminal is being commanded
After the local convergence of dispatch server 102, by the use of wireless private network as transmission channel, after accessing secure accessing platform 30, it is delivered to
The command scheduling client of Intranet（That is emergency first-aid repair control centre 40）；Realized simultaneously using the cut-in method of nested vpn tunneling
Session Initiation Protocol passes through secure accessing platform 30, ensure that the normal realization of emergency first-aid repair multimedia dispatching business.
Each communication node IP is planned to 5 groups in embodiment one, referring specifically to shown in table 1：
Table 1
In embodiment one, according to each communicating node device is arranged shown in Fig. 4, internal, external network IP address and the IP that eats dishes without rice or wine are configured
Address.Wireless CPE201 installs corresponding driving, void is distributed for SSL VPN clients according to USBKey or built-in TF cards
Intend IP address.Safe access gateway 301 sets corresponding route mapping, configures corresponding SSL VPN virtual IP addresses, it is established that SSL
Vpn tunneling.Dispatch control server 102 is configured to L2TP server ends, sets corresponding L2TP VPN virtual ip address.Scheduling
Commander's client is configured to L2TP clients, sets corresponding L2TP VPN virtual ip address, establishes L2TP vpn tunnelings.Pass through
The cut-in method of nested vpn tunneling can complete the safe transmission of field data.
The 26S Proteasome Structure and Function of power emergency repair telecommunication system is described in detail above, based on the power emergency repair
Telecommunication system, the embodiment of the present invention also provide a kind of power emergency repair remote communication method, the party are described in detail below
The idiographic flow of method.
A kind of power emergency repair remote communication method provided in an embodiment of the present invention, it is shown in Figure 5, including：
Step 501：Live local communication system will be sent in the field data of emergency first-aid repair collection in worksite by transformer station
To secure accessing platform.
Specifically, step 501 includes step B1-B3：
Step B1, it is taken at the field data of emergency first-aid repair collection in worksite；
Step B2, virtual ip address is configured, new TCP is established with secure accessing platform and is connected；
Step B3, consulting session key, and session key and field data are sent to secure accessing platform.
Wherein, step B2 and step B3 is specifically completed by the Security Encryption module of transformer station, and Security Encryption module can be
USBKey or TF encrypted cards, concrete function are seen above, and are not repeated herein.
Step 502：Secure accessing platform carries out safe handling to field data, and safe handling includes：Data deciphering, identity
Certification and data filtering.
Secure accessing platform is the key foundation for building intelligent grid information security access system, by the way that field data is connect
Enter secure accessing platform and carry out safe handling, the security of data can be improved.
Step 503：Field data after safe handling is sent to emergency first-aid repair control centre, instruction emergency first-aid repair scheduling
Center performs corresponding operation.
A kind of power emergency repair remote communication method provided in an embodiment of the present invention, the multimedia that wireless private network is carried
Data access secure accessing platform is dispatched, passes through data encryption of the secure accessing platform realization to wireless private network, authentication, number
According to security management and controls such as filterings, solve the problems, such as potential safety hazard be present when transmitting power sensitive information using wireless private network.
In the embodiment of the present invention, Session Initiation Protocol is transmitted using the data cut-in method based on nested vpn tunneling.Specifically,
The connection of SSL vpn tunnelings is established between transformer station and secure accessing platform, transformer station is as SSL VPN clients, secure accessing
Platform is as SSL vpn servers end；L2TP VPN tunnels are established between live local communication system and emergency first-aid repair control centre
Road connects, and command scheduling server is as L2TP server ends, and emergency first-aid repair control centre is as L2TP clients.
The flow of power emergency repair remote communication method is discussed in detail below by one embodiment.
Embodiment two
In embodiment two, the field data of the collection such as emergency first-aid repair video terminal, voice terminal, data terminal is at the scene
After local communication system convergence, by the use of wireless private network as transmission channel, after accessing secure accessing platform, answering for Intranet is delivered to
Anxious repairing control centre；Realize that Session Initiation Protocol passes through secure accessing platform using the cut-in method of nested vpn tunneling simultaneously, ensure
The normal realization of emergency first-aid repair multimedia dispatching business.
Shown in Figure 6, the idiographic flow of power emergency repair remote communication method is as follows：
Step 601：Live local communication system is taken at the field data of emergency first-aid repair collection in worksite, and to the live number
Handled according to L2TP protocol headers are packaged.
Step 602：Live local communication system sends the field data for encapsulating L2TP protocol headers to closest
Transformer station.
Step 603：Transformer station configures virtual ip address, establishes new TCP with secure accessing platform and is connected.
Step 604：Transformer station's consulting session key, and the field data to receiving is packaged at ssl protocol header
Reason.
Step 605：Transformer station sends the field data for encapsulating ssl protocol header to secure accessing platform.
Step 606：Secure accessing platform parses ssl protocol header, obtains the field data of encapsulation L2TP protocol headers, and
Safe handling is carried out to the field data.
Step 607：Secure accessing platform sends the field data after processing to emergency first-aid repair control centre.
Step 608：Emergency first-aid repair control centre parses L2TP protocol headers, obtains initial field data, i.e. Session Initiation Protocol
Instruction.
To sum up, a kind of power emergency repair remote communication method provided in an embodiment of the present invention and system, by wireless private network
The multimedia dispatching data access secure accessing platform of carrying, realized by secure accessing platform and the data of wireless private network are added
The security management and controls such as close, authentication, data filtering, solve hidden in the presence of safety when transmitting power sensitive information using wireless private network
The problem of suffering from.Meanwhile the information access method based on nested vpn tunneling, utilize the method for L2TP VPN nesting SSL vpn tunnelings
Realize Session Initiation Protocol and pass through secure accessing platform, ensure that the normal realization of multimedia dispatching business.
The present invention can have a variety of various forms of embodiments, above by taking Fig. 1-Fig. 6 as an example with reference to accompanying drawing to this hair
Bright technical scheme explanation for example, this is not meant to that the instantiation that the present invention is applied can only be confined to specific flow
Or in example structure, one of ordinary skill in the art is it is to be appreciated that specific embodiment presented above is a variety of
Some examples in its preferred usage, any embodiment for embodying the claims in the present invention all should be wanted in technical solution of the present invention
Within the scope of asking protection.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's
Within protection domain.
Claims (8)
- A kind of 1. power emergency repair remote communication method, it is characterised in that including：Live local communication system will be sent to secure accessing by transformer station in the field data of emergency first-aid repair collection in worksite and be put down Platform；The secure accessing platform carries out safe handling to the field data, and the safe handling includes：Data deciphering, identity Certification and data filtering；The secure accessing platform sends the field data after the safe handling to emergency first-aid repair control centre, described in instruction Emergency first-aid repair control centre performs corresponding operation；Wherein, the connection of SSL vpn tunnelings, transformer station's conduct are established between the transformer station and the secure accessing platform SSL VPN clients, the secure accessing platform is as SSL vpn servers end；The connection of L2TP vpn tunnelings is established between the live local communication system and the emergency first-aid repair control centre, commander adjusts Server is spent as L2TP server ends, and the emergency first-aid repair control centre is as L2TP clients.
- 2. according to the method for claim 1, it is characterised in that described by the field data hair of emergency first-aid repair collection in worksite Secure accessing platform is delivered to, including：It is taken at the field data of emergency first-aid repair collection in worksite；Virtual ip address is configured, new TCP is established with the secure accessing platform and is connected；Consulting session key, and the session key and the field data are sent to the secure accessing platform.
- 3. according to the method for claim 1, it is characterised in that the field data is carried out in the secure accessing platform Before the step of safe handling, in addition to：The live local communication system is packaged the processing of L2TP protocol headers to the field data, determines that level package shows Field data；The transformer station is packaged the processing of ssl protocol header to the level package field data, determines that second level package shows Field data, and the second level package field data is sent to the secure accessing platform；The secure accessing platform is to described Second level package field data carries out parsing the processing of ssl protocol header, obtains the level package field data；Sent in the field data after by the safe handling the step of emergency first-aid repair control centre, in addition to：The emergency first-aid repair control centre carries out parsing the processing of L2TP protocol headers to the field data after the safe handling.
- 4. according to the method for claim 1, it is characterised in that the transformer station will be described existing by power optical fiber communication network Field data is sent to the secure accessing platform.
- A kind of 5. power emergency repair telecommunication system, it is characterised in that including：Live local communication system, transformer station, peace Full access platform and emergency first-aid repair control centre；The live local communication system passes sequentially through the transformer station and the secure accessing platform and adjusted with the emergency first-aid repair Degree center is connected；The live local communication system includes：Data collection station, command scheduling server and wireless base station, the data are adopted Collection terminal and the command scheduling server are connected with the wireless base station respectively；Wherein, the connection of SSL vpn tunnelings, transformer station's conduct are established between the transformer station and the secure accessing platform SSL VPN clients, the secure accessing platform is as SSL vpn servers end；The connection of L2TP vpn tunnelings, the finger are established between the live local communication system and the emergency first-aid repair control centre Dispatch server is waved as L2TP server ends, the emergency first-aid repair control centre is as L2TP clients.
- 6. system according to claim 5, it is characterised in that the transformer station includes：Wireless CPE and safety encryption mould Block, the wireless CPE are connected with the Security Encryption module；The Security Encryption module includes USBKey or TF encrypted cards.
- 7. system according to claim 5, it is characterised in that the secure accessing platform includes：Safe access gateway, body Part authentication module and data filtering module, the safe access gateway respectively with the authentication module and the data filtering Module is connected；The transformer station is connected by the safe access gateway with the emergency first-aid repair control centre.
- 8. according to any described systems of claim 5-7, it is characterised in that the transformer station by power optical fiber communication network with The secure accessing platform is connected.
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| CN106131104A (en) * | 2016-06-06 | 2016-11-16 | 南京南瑞继保电气有限公司 | A kind of photovoltaic plant group network system based on LTE radio communication |
| CN106992916A (en) * | 2017-03-02 | 2017-07-28 | 广西大学 | A kind of electric power dispatching system and implementation method based on virtual private cloud |
| CN107645509B (en) * | 2017-10-19 | 2020-11-06 | 国网四川省电力公司乐山供电公司 | Portable multimedia consultation cloud platform |
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